package com.atguigu.eduservice.controller;


import com.atguigu.commonutils.R;
import com.atguigu.eduservice.entity.EduTeacher;
import com.atguigu.eduservice.entity.vo.TeacherEduQuery;
import com.atguigu.eduservice.service.EduTeacherService;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiModelProperty;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author hjt
 * @since 2021-02-22
 */
@Api(value = "讲师管理")
@CrossOrigin//跨域
@RestController
@RequestMapping("/eduService/eduTeacher")
public class EduTeacherController {

    @Autowired
    EduTeacherService eduTeacherService;


    //1.查询讲师表中所有数据
    @ApiOperation(value = "所有讲师列表")
    @GetMapping("findAll")
    public R findAllTeacher() {
        List<EduTeacher> list = eduTeacherService.list(null);
        return R.ok().data("items", list);
    }

    //2.逻辑删除讲师
    @ApiOperation(value = "逻辑删除讲师")
    @DeleteMapping("{id}")
    public R removeTeacherById(
            @ApiParam(name = "id", value = "讲师ID", required = true)
            @PathVariable String id) {
        boolean flag = eduTeacherService.removeById(id);
        if (flag) {
            return R.ok();
        } else {
            return R.error();
        }
    }

    //3.分页查询
    @ApiModelProperty(value = "分页查询")
    @GetMapping("pageTeacher/{current}/{limit}")
    public R pageListTeacher(@PathVariable long current,
                             @PathVariable long limit) {
        //创建分页对象
        Page<EduTeacher> pageTeacher = new Page<>(current, limit);
        //调用方法实现分页
        //调用方法时候，底层封装，将查询到的数据封装到pageTeacher对象中
        eduTeacherService.page(pageTeacher, null);

        long total = pageTeacher.getTotal();
        List<EduTeacher> records = pageTeacher.getRecords();

//        Map map = new HashMap<>();
//        map.put("total",total);
//        map.put("records",records);
//        return R.ok().data(map);
        return R.ok().data("total", total).data("rows", records);
    }

    //4.条件查询带分页
    @ApiModelProperty("条件组合查询带分页")
    @PostMapping("pageTeacherCondition/{current}/{limit}")
    public R pageTeacherCondition(@PathVariable long current,
                                  @PathVariable long limit,
                                  @RequestBody(required = false) TeacherEduQuery teacherEduQuery) {
        //创建分页对象
        Page<EduTeacher> page = new Page<>(current, limit);


        //构建条件
        QueryWrapper<EduTeacher> wrapper = new QueryWrapper<>();

        //多条件组合查询,获取对象条件值
        String name = teacherEduQuery.getName();
        Integer level = teacherEduQuery.getLevel();
        String begin = teacherEduQuery.getBegin();
        String end = teacherEduQuery.getEnd();

        //判断条件值是否为空，如果不为空拼接
        if (!StringUtils.isEmpty(name)) {
            wrapper.like("name", name);
        }
        if (!StringUtils.isEmpty(level)) {
            wrapper.eq("level", level);
        }
        if (!StringUtils.isEmpty(begin)) {
            wrapper.ge("gmt_create", begin);
        }
        if (!StringUtils.isEmpty(end)) {
            wrapper.le("gmt_create", end);
        }

        //排序
        wrapper.orderByDesc("gmt_create");

        eduTeacherService.page(page, wrapper);
        long total = page.getTotal();
        List<EduTeacher> records = page.getRecords();
        return R.ok().data("total", total).data("rows", records);

    }

    //5.添加讲师
    @PostMapping("addTeacher")
    public R addTeacher(@RequestBody EduTeacher eduTeacher) {
        boolean save = eduTeacherService.save(eduTeacher);
        if (save) {
            return R.ok();
        } else {
            return R.error();
        }
    }

    //6.讲师修改功能
    //(1)根据id查询讲师
    @GetMapping("getTeacher/{id}")
    public R getTeacher(@PathVariable String id) {
        EduTeacher eduTeacher = eduTeacherService.getById(id);
        return R.ok().data("teacher", eduTeacher);

    }

    //(2)讲师修改
    @PostMapping("updateTeacher")
    public R updateTeacher(@RequestBody EduTeacher eduTeacher) {
        boolean flag = eduTeacherService.updateById(eduTeacher);
        if (flag) {
            return R.ok();
        } else {
            return R.error();
        }
    }
}

